Lironobidae

Lironobidae is a family of minute sea snails, marine gastropod mollusks in the clade Littorinimorpha. These snails are typically very small and inhabit intertidal and shallow subtidal zones.

The family Lironobidae is characterized by their small size, typically less than 5mm, and their smooth, often glossy shells. The operculum is horny.

Taxonomically, Lironobidae is placed within the superfamily Truncatelloidea. The exact relationships within the Truncatelloidea and the composition of the family itself have been subject to revision with the advent of molecular phylogenetic studies. The genera included in Lironobidae may vary depending on the source and ongoing taxonomic research.

Lironobids are found in various locations globally, generally associated with rocky shores, algal beds, and similar marine habitats. They are grazing herbivores, feeding on microalgae and other organic matter.